In closely related work, Simmons & Manahan (1999) studied the productivity benefits of using increasingly large displays. In that study, they examined productivity for MS Office tasks (e.g., using Word, Excel, etc.) with four different monitors sizes: 15”, 17”, 19” and 21” diagonal viewing areas. Resolution was not controlled across the monitor sizes. Significant productivity benefits were reported for the 21” monitor size in terms of task times and overall preference. A few other studies using single, widely available displays sizes have also reported performance benefits such as ease of learning task speed decreases from using the larger display sizes (De Bruijn, De Mul & Van Oostendorp, 1992; Dillon, Richardson & McKnight, 1990; Kingery & Furuta, 1997; Sommerich et al., 1998). Unfortunately, these studies did not examine display sizes larger than a 21” diagonal display.